People use pesticides on their animals to control fleas, ticks, mosquitoes, and other pests. They can be very beneficial, but they can cause harm to animals, especially if they are not used according to the label directions. Always read and follow the label directions when using pesticide products.

If you are concerned that a pesticide made your pet sick, call NPIC at 800-858-7378 to discuss the incident. For emergencies, contact your veterinarian or the ASPCA Animal Poison Control Center at 1-888-426-4435.

Keep these tips in mind:

• Follow the label carefully. More is not better! Over-treating animals can lead to illness or death.
• The prescribed dose for most topical formulations is determined by the animal's weight. You can weigh your animal at home by weighing yourself with and without holding the pet. The difference is your animal's weight.
• Dog products should never be used on cats. Certain pesticides are more toxic to one species compared to the other. Always follow the label directions.
• Products designed for adult pets should never be used on kittens or puppies unless the label states that the product may be used on younger animals.
• Wear protective clothing as required by the label to minimize your exposure.
• It's a common mistake to use flea and/or tick shampoo before using another insecticide on the animal's fur. Unless the label directions for the two products indicate they can be used together, select only one of the products for use.
• If you have multiple pets, check the label directions. Many products require treated animals to be separated after treatment to prevent touching and licking.
• Your veterinarian can help you compare and select the most appropriate products to control insects and ticks on your pets.
• Beware of counterfeit products, which may not be packaged, labeled or formulated correctly.

Note: Some pest control products for animals are considered drugs (pharmaceuticals). These are prescribed by veterinarians and regulated by the Food and Drug Administration (FDA).

Additional Resources:

• Controlling Fleas and Ticks on Your Pet - Environmental Protection Agency (EPA)
• Protecting Pets from Fleas and Ticks - Environmental Protection Agency (EPA)
• Read the Label First: Protect Your Pets - Environmental Protection Agency (EPA)
• Safe Use of Flea and Tick Products in Pets- Food and Drug Administration (FDA)
• EPA Evaluation of Pet Spot-on Products: Analysis and Plans for Reducing Harmful Effects - Environmental Protection Agency (EPA)
• Avoid Counterfeit Pesticide Products for Dogs and Cats - Environmental Protection Agency (EPA)
• Keep Pets Safe Around Pesticides - Oregon State University Extension
• What you should know about external parasites - American Veterinary Medical Association

If you have questions about this, or any pesticide-related topic, please call NPIC at 800-858-7378 (8:00am - 12:00pm PST), or email at npic@ace.orst.edu.